Limiter amplifier
CA 1180774 A · Owner: Nippon Electric Co. Ltd. · Inventors: Nagata, Koichi; Oda, Takashi
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A limiter amplifier suitable for use in a paging receiver is described. The amplifier does not use coupling capacitors and can therefore be manufactured as a monolithic integrated circuit. Furthermore it is, capable of obtaining a favourable saturation characteristic even when operated by a low-voltage power source such as a single dry battery. Finally temperature variations have virtually no effect on the new amplifier. The amplifier comprises a power supply, two or more cascade-connected differential amplifiers for amplitude limiting and input. Each differential amplifier has a first constant current circuit. A biassing circuit is connected to an input of the cascaded differential …
Read the whole patent
Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Granted January 8, 1985. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 8, 2002.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.